Circular cloth cutter



l /Q y April 8, 1947. B. MULLER 2,418,596

CIRCULAR CLOTH- CUTTER Filed May 7, 1945 2 Sheets-Sheet l April 8,- 1947. Es. MULLER CIRCULAR CLOTH-CUTTER cs-sheet 2 Filed May '7, 1945 2 Shee Patented Apr. 8, 1947 CIRCULAR CLOTH CUTTER BelaMuller, New York, N. Y.

Application Mayl', 1945, Serial No. 592,348

2 Claims.

`Thisv invention relates to Ycloth cutting devices. K

particularly cloth which has been'. manufactured into4 garments suchl as womens skirts having aV bottomledge to be desirably cut in asuitable and preferably horizontal plane, a suitable distance fromf the floor on which the wearer stands while the=worniskirt is cut.

Anvobjectof the inventionis the provision of novell means toY grasp a circular tubular cloth garment tightly in a circular clamp to present the clamped portion of cloth to a circular cutting edgel otaiknife for instant` complete circular cut of the cloth with one stroke of the knifezblade.`

Another object isthe provision of means to adjustably position my novel cutter mechanism` a measured distance up from a floor and toA maintain the cutter in a horizontal plane.

Still another object` is the provisioniof a circu- `lar releasable band connected with the` knife which bandlupon arcuate released motion slidably movesnthe knife mechanism intocutting position to cut the circularly held cloth `throughout its` circular length. with one movement of the knife.

These and other objectsare attained by my device as described in the following specification and as shown in the accompanying drawings in which, y *Y Fig. 1 isa top plan viewof my novel circular cutting; device.

Fig. 2 isafront elevationview of the `device of Fig. 1 and showing a skirt before having its bottom portion cut from its upper part (the dot-dash lines indicating the bottom cut-off portion after having been severed from the upper portion).

Fig. 3 and Fig. 4 are section views taken on the line 4-4 of Fig. 1 respectively showing the knife blade after having cut the held cloth and before cutting the held cloth.

Fig. 5 is a plan view of a sliding splice connector means for joining two semi-circular U-shaped rings to form my ring clamp member.

Fig. 6 is a section of the device of Fig. 5 taken on line 6 6 of Fig. 5.

Fig. 7 is a front view partly in section of my knife blade showing a method of joining arcuate knife segments for relative sliding movement and taken on line 'I-l of Fig. 8.

Fig. 8 is a plan view of the device of Fig. rI and showing a number of knife blade segments being held by my release band in non cutting position.

Fig. 9 is a plan view of the device of Fig. 7 showing a number of knife blade segments after release by movement of my release band and shown in cutting position.

Fig; 101 is a front. elevation partly in section; taken on line |0|0 of Fig. 1.and1showingurii clamped` cloth in position` ready to be clamped and cut.

Fig. 11 is a section view taken on lineV II-I ofFig;` 1 showing: a bracket holding my device atV a radial point4 therealong. 1n Figs. 1 and 2 aV suitable baseiIQ has mount:

ed` verticallyY thereon a` graduated postAV onwhicli is suitably slidablyymounted my cuttingdevice I2A by a bami-bracket I Shaving wing-nutstud I4. Clockwise turn of` thestud tightens the:l bandv I3..to'the post Ilata selected distance up-f wardalongthe post Arm l5 (see Fig. 1.0) has an end I6 mounted on bracket I3, its other endV II having xed thereon my knife cutter mechanisml by means of fastener I8. The circular 'knife blade I9`composed of a number ofsegments |9 |92, |93 is mountedwith memberV I5 forarcuate` slide in outer ring 20 in turn fastenedbyi rivets 2| to bracket 22 in turn fastenedby fastenerA I8 on element Il of arm member I5.` v

Figs. 7; Sland 9 show a preferred method; ofi

slidably joining said blade segments ISI,` |92. etc.`

Suitableislots ISIS,` I92s receivea rivet.25h-there#V thru to provide mount of the segments forparcueate slide in a horizontal plane.` l

Figs. 3 and 4 show apreferred methodof` carryl of the. slidably joined segments in .suitable` bracketsr 24 at for example six points along thefcircularf` blade. Spring means 25` having an end 26.` faseu tened to outer ring 20 and an opposite end ZTlfthe band 30 to position the crest 302 as in Fig. 3

releases the knife mechanism so that the knife has moved from the position of Fig. 4 through the cloth C to the position of Fig. 3.

In Figs. 5, 6, 2, 10 and 11 I show my clamp ring 40 having two semi-circular segments 40a and 40h joined by sleeve members 4| the latter having slots 42 to slidingly receive fastener 43. Brackets 44 having spring arms 45 and 46 yieldably mount the clamp ring with the knife mechanism so that movement of the lever-bracket 50 and handle 5| to the right as the arrow shows, carries the ring expandingly in the same direction, the Slot 42 facilitating said ring expansion. Cloth C already between the ring 40 and the outer ring knife mechanism is thus gripped between elements 40a, 4012 and 20. A lock claw 53 yieldably receives tooth 54 to hold said clamp ring 40, cloth C and element 20 together and thus prepares the tightened cloth for cutting with the knife I9. A knob 55 on member may be used to release said lock.

In operation when the crest 302 of the projecting bulges 30| of the outer circular band 30 are engaged with the brackets 24 the knife cutting edge |95 is placed in non-cutting position as shown in Fig. 4. ,A

To actuate the knife blade it is noted that spring 25 normally tends to contract from the abnormal or expanded position of spring 25 as shown in Fig. 4 and when the spring is abnormally positioned it is seen the knife is, as stated, in non-cutting position and the crests 302 of the bulges 30| are 'engaged with the shoulders 24| ofthe brackets 24.

When the crests 302 are disengaged with the brackets 24 the normally contracting'springs 25 contract, as shown in Fig. 3 and carry the brackets 24 (having mounted knife I9) slidably over the outer ring 20 to engage the knife edge |95 with the cloth C thereby cutting the cloth. Other spring actuating means may be provided to move the bracket and the knife.

It is to be noted that the inner clamp ring, the circular segmental knife and the outer ring may be expandable and contractable. I, however, prefer the outer ring to be fixed and non-contractable.

While I have shown a mechanism practical of operation other means may be provided to attain the result. It is intended that my disclosure be illustrative rather than limitative.

1. yA cutting device having a base carrying an upright graduated rod on whch'the cutter mechanism is mounted, an arm having a strap around thevrod having a screw for engaging the strap with the rod, said cutter being mounted on the` strap-arm and comprising a knife, 'an inner circular clamp and a spaced apart outer circular knife ring removably engageable with each other, anumberof vresilient brackets each having two arms' engaging andY mounting the rings, a knife anda U-shaped knife holder connected with the strap-arm and also engaging the outer ring,V

with the rod, said cutter being mounted on the strap-arm and comprising a knife, an inner circular clamp and a spaced apart outer circular knife ring removably engageable with each other,

" a number of resilient brackets each having two arms engaging and mounting the rings, a knife and a U-shaped knife holder connected with the strap-arm and also engaging the outer ring, means removably engaging the clamp ring with the knife ring to clamp cloth therebetween com-K, prising` a lever fixed on the clamp ring `and slidably engaging the strap-arm, a circular l segmental knife slidingly mounted-on the outer ring and having a cutting edge engageable with` the clamped cloth when the knife slides in the outer ring towards the inner clamp, means to releasably hold the knife against the slide comprising, a number of brackets each having fastenerson the outer ring and engaged thru s lots` inthe knife, a spring in each bracket having two ends,

one end fastened on the bracket and the otherYY end fastened on the outer ring, and normally drawing the ring toward the brackets, a band slidable around the outer ring and having bulges:

engageable with the brackets and holding the spring abnormally expanded, a handlepn the band for disengagng the bulges from the brack-i ets' and releasing the spring from'abnormal position to slidey the knife inthe outer ring .to cut the clamped cloth. l

, BELA REFERENCES I The following references'are of record vin the' file of this patent:

VUNITED STATES PATENTS 'l Number Name i JADatel Carillo et al. V Jran. 1.2,- 1943 

